Home / 88,090.60-132,395.10-76,685.80

Finding the Fourth Proportional to 88,090.60, 132,395.10 and 76,685.80

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Solution

The fourth proportional to 88,090.60, 132,395.10 and 76,685.80 is: 115,254.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,090.60 : 132,395.10 = 76,685.80 : x
  2. Step 2: Convert to fraction form
    88,090.60/132,395.10 = 76,685.80/x
  3. Step 3: Cross multiply
    88,090.60x = 132,395.10 × 76,685.80
  4. Step 4: Simplify right side
    88,090.60x = 10,152,824,159.58
  5. Step 5: Solve for x
    x = 10,152,824,159.58/88,090.60
  6. Step 6: Final answer
    x = 115,254.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.